diff --git a/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/service/Impl/DataSetLabelsServiceImpl.java b/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/service/Impl/DataSetLabelsServiceImpl.java
index e49e86a..9bacb9e 100644
--- a/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/service/Impl/DataSetLabelsServiceImpl.java
+++ b/bonus-modules/bonus-ai/src/main/java/com/bonus/ai/service/Impl/DataSetLabelsServiceImpl.java
@@ -109,8 +109,13 @@ public class DataSetLabelsServiceImpl implements DataSetLabelsService
         try{
             Set<Long> childIds = new HashSet<>();
             for (Long labelId : labelIds){
-                childIds.addAll(getFileWithChildren(labelId));
-                childIds.add(labelId);
+                Set <Long> childSet = getFileWithChildren(labelId);
+                if (!childSet.isEmpty()){
+                    return AjaxResult.error("节点下存在子节点，不能删除");
+                }
+                else {
+                    childIds.add(labelId);
+                }
             }
             // 转换 Set<Long> 为 Long[]
             Long[] longArray = childIds.toArray(new Long[0]);
diff --git a/bonus-modules/bonus-ai/src/main/resources/mapper/DataSetLabelsMapper.xml b/bonus-modules/bonus-ai/src/main/resources/mapper/DataSetLabelsMapper.xml
index cbdae10..0c7a5b8 100644
--- a/bonus-modules/bonus-ai/src/main/resources/mapper/DataSetLabelsMapper.xml
+++ b/bonus-modules/bonus-ai/src/main/resources/mapper/DataSetLabelsMapper.xml
@@ -14,25 +14,28 @@
         <result property="updateBy"    column="update_by"    />
         <result property="updateTime"    column="update_time"    />
         <result property="createTime"    column="create_time"    />
+        <result property="parentName"    column="parentName"    />
     </resultMap>
 
     <sql id="selectDataSetLabelsVo">
-        select label_id, ancestors, parent_id, label_name, del_flag, create_by, update_by, update_time, create_time from ai_labels
+        select a.label_id, a.ancestors, a.parent_id, a.label_name, a.del_flag, a.create_by, a.update_by, a.update_time, a.create_time, b.label_name AS parentName
+        from ai_labels a
+        LEFT JOIN ai_labels b ON a.parent_id = b.label_id
     </sql>
 
     <select id="selectDataSetLabelsList" parameterType="com.bonus.ai.domain.DataSetLabels" resultMap="DataSetLabelsResult">
         <include refid="selectDataSetLabelsVo"/>
         <where>
-            del_flag ='0'
-            <if test="ancestors != null  and ancestors != ''"> and ancestors = #{ancestors}</if>
-            <if test="parentId != null "> and parent_id = #{parentId}</if>
-            <if test="labelName != null "> and label_name like concat('%', #{labelName}, '%')</if>
+            a.del_flag ='0'
+            <if test="ancestors != null  and ancestors != ''"> and a.ancestors = #{ancestors}</if>
+            <if test="parentId != null "> and a.parent_id = #{parentId}</if>
+            <if test="labelName != null "> and a.label_name like concat('%', #{labelName}, '%')</if>
         </where>
     </select>
 
     <select id="selectDataSetLabelsByLabelId" parameterType="Long" resultMap="DataSetLabelsResult">
         <include refid="selectDataSetLabelsVo"/>
-        where label_id = #{labelId}
+        where a.label_id = #{labelId}
     </select>
 
     <insert id="insertDataSetLabels" parameterType="com.bonus.ai.domain.DataSetLabels" useGeneratedKeys="true" keyProperty="labelId">